Channel::try_recv

pub fn try_recv() -> Result<T, ChannelError>

use task::{Channel};

Takes the oldest value if there is one, without waiting.

Called on a Channel value as value.try_recv(…).

Returns#

Result<T, ChannelError>

Errors#

Err(ChannelError::Empty) when there is none, or Err(ChannelError::Closed) once the channel is closed and empty.

See also#

• Channel: A bounded queue for passing values between tasks.
• Channel::send: Adds value to the channel, waiting while it is full (a suspension point).
• Channel::try_send: Adds value if there is room, without waiting.
• Channel::recv: Takes the oldest value, waiting while the channel is empty (a suspension point).
• Channel::close: Closes the channel: no more values can be sent.
• Channel::len: Returns the number of values waiting to be received.
• Channel::capacity: Returns the most values the channel can hold.
• Channel::is_closed: Returns true once close has been called.